Merge branch 'master' into for-2.6.31

Conflicts:
	drivers/block/hd.c
	drivers/block/mg_disk.c

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 61 insertions, 21 deletions

diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 0472bb7..747d73c 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -267,6 +267,10 @@ static void fc_rport_work(struct work_struct *work)
 			       "(%6x).\n", ids.port_id);
 			event = RPORT_EV_FAILED;
 		}
+		if (rport->port_id != FC_FID_DIR_SERV)
+			if (rport_ops->event_callback)
+				rport_ops->event_callback(lport, rport,
+							  RPORT_EV_FAILED);
 		put_device(&rport->dev);
 		rport = new_rport;
 		rdata = new_rport->dd_data;
@@ -325,11 +329,20 @@ int fc_rport_login(struct fc_rport *rport)
 int fc_rport_logoff(struct fc_rport *rport)
 {
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
+	struct fc_lport *lport = rdata->local_port;
 
 	mutex_lock(&rdata->rp_mutex);
 
 	FC_DEBUG_RPORT("Remove port (%6x)\n", rport->port_id);
 
+	if (rdata->rp_state == RPORT_ST_NONE) {
+		FC_DEBUG_RPORT("(%6x): Port (%6x) in NONE state,"
+			       " not removing", fc_host_port_id(lport->host),
+			       rport->port_id);
+		mutex_unlock(&rdata->rp_mutex);
+		goto out;
+	}
+
 	fc_rport_enter_logo(rport);
 
 	/*
@@ -349,6 +362,7 @@ int fc_rport_logoff(struct fc_rport *rport)
 
 	mutex_unlock(&rdata->rp_mutex);
 
+out:
 	return 0;
 }
 
@@ -430,6 +444,7 @@ static void fc_rport_error(struct fc_rport *rport, struct fc_frame *fp)
 	case RPORT_ST_PRLI:
 	case RPORT_ST_LOGO:
 		rdata->event = RPORT_EV_FAILED;
+		fc_rport_state_enter(rport, RPORT_ST_NONE);
 		queue_work(rport_event_queue,
 			   &rdata->event_work);
 		break;
@@ -494,7 +509,7 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp,
 	struct fc_rport *rport = rp_arg;
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
 	struct fc_lport *lport = rdata->local_port;
-	struct fc_els_flogi *plp;
+	struct fc_els_flogi *plp = NULL;
 	unsigned int tov;
 	u16 csp_seq;
 	u16 cssp_seq;
@@ -505,17 +520,19 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp,
 	FC_DEBUG_RPORT("Received a PLOGI response from port (%6x)\n",
 		       rport->port_id);
 
-	if (IS_ERR(fp)) {
-		fc_rport_error_retry(rport, fp);
-		goto err;
-	}
-
 	if (rdata->rp_state != RPORT_ST_PLOGI) {
 		FC_DBG("Received a PLOGI response, but in state %s\n",
 		       fc_rport_state(rport));
+		if (IS_ERR(fp))
+			goto err;
 		goto out;
 	}
 
+	if (IS_ERR(fp)) {
+		fc_rport_error_retry(rport, fp);
+		goto err;
+	}
+
 	op = fc_frame_payload_op(fp);
 	if (op == ELS_LS_ACC &&
 	    (plp = fc_frame_payload_get(fp, sizeof(*plp))) != NULL) {
@@ -614,17 +631,19 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
 	FC_DEBUG_RPORT("Received a PRLI response from port (%6x)\n",
 		       rport->port_id);
 
-	if (IS_ERR(fp)) {
-		fc_rport_error_retry(rport, fp);
-		goto err;
-	}
-
 	if (rdata->rp_state != RPORT_ST_PRLI) {
 		FC_DBG("Received a PRLI response, but in state %s\n",
 		       fc_rport_state(rport));
+		if (IS_ERR(fp))
+			goto err;
 		goto out;
 	}
 
+	if (IS_ERR(fp)) {
+		fc_rport_error_retry(rport, fp);
+		goto err;
+	}
+
 	op = fc_frame_payload_op(fp);
 	if (op == ELS_LS_ACC) {
 		pp = fc_frame_payload_get(fp, sizeof(*pp));
@@ -646,6 +665,7 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
 	} else {
 		FC_DBG("Bad ELS response\n");
 		rdata->event = RPORT_EV_FAILED;
+		fc_rport_state_enter(rport, RPORT_ST_NONE);
 		queue_work(rport_event_queue, &rdata->event_work);
 	}
 
@@ -678,23 +698,26 @@ static void fc_rport_logo_resp(struct fc_seq *sp, struct fc_frame *fp,
 	FC_DEBUG_RPORT("Received a LOGO response from port (%6x)\n",
 		       rport->port_id);
 
-	if (IS_ERR(fp)) {
-		fc_rport_error_retry(rport, fp);
-		goto err;
-	}
-
 	if (rdata->rp_state != RPORT_ST_LOGO) {
 		FC_DEBUG_RPORT("Received a LOGO response, but in state %s\n",
 			       fc_rport_state(rport));
+		if (IS_ERR(fp))
+			goto err;
 		goto out;
 	}
 
+	if (IS_ERR(fp)) {
+		fc_rport_error_retry(rport, fp);
+		goto err;
+	}
+
 	op = fc_frame_payload_op(fp);
 	if (op == ELS_LS_ACC) {
 		fc_rport_enter_rtv(rport);
 	} else {
 		FC_DBG("Bad ELS response\n");
 		rdata->event = RPORT_EV_LOGO;
+		fc_rport_state_enter(rport, RPORT_ST_NONE);
 		queue_work(rport_event_queue, &rdata->event_work);
 	}
 
@@ -764,17 +787,19 @@ static void fc_rport_rtv_resp(struct fc_seq *sp, struct fc_frame *fp,
 	FC_DEBUG_RPORT("Received a RTV response from port (%6x)\n",
 		       rport->port_id);
 
-	if (IS_ERR(fp)) {
-		fc_rport_error(rport, fp);
-		goto err;
-	}
-
 	if (rdata->rp_state != RPORT_ST_RTV) {
 		FC_DBG("Received a RTV response, but in state %s\n",
 		       fc_rport_state(rport));
+		if (IS_ERR(fp))
+			goto err;
 		goto out;
 	}
 
+	if (IS_ERR(fp)) {
+		fc_rport_error(rport, fp);
+		goto err;
+	}
+
 	op = fc_frame_payload_op(fp);
 	if (op == ELS_LS_ACC) {
 		struct fc_els_rtv_acc *rtv;
@@ -1007,6 +1032,8 @@ static void fc_rport_recv_plogi_req(struct fc_rport *rport,
 	default:
 		FC_DEBUG_RPORT("incoming PLOGI from %x in unexpected "
 			       "state %d\n", sid, rdata->rp_state);
+		fc_frame_free(fp);
+		return;
 		break;
 	}
 
@@ -1098,6 +1125,8 @@ static void fc_rport_recv_prli_req(struct fc_rport *rport,
 		reason = ELS_RJT_NONE;
 		break;
 	default:
+		fc_frame_free(rx_fp);
+		return;
 		break;
 	}
 	len = fr_len(rx_fp) - sizeof(*fh);
@@ -1227,6 +1256,11 @@ static void fc_rport_recv_prlo_req(struct fc_rport *rport, struct fc_seq *sp,
 		       "while in state %s\n", ntoh24(fh->fh_s_id),
 		       fc_rport_state(rport));
 
+	if (rdata->rp_state == RPORT_ST_NONE) {
+		fc_frame_free(fp);
+		return;
+	}
+
 	rjt_data.fp = NULL;
 	rjt_data.reason = ELS_RJT_UNAB;
 	rjt_data.explan = ELS_EXPL_NONE;
@@ -1256,7 +1290,13 @@ static void fc_rport_recv_logo_req(struct fc_rport *rport, struct fc_seq *sp,
 		       "while in state %s\n", ntoh24(fh->fh_s_id),
 		       fc_rport_state(rport));
 
+	if (rdata->rp_state == RPORT_ST_NONE) {
+		fc_frame_free(fp);
+		return;
+	}
+
 	rdata->event = RPORT_EV_LOGO;
+	fc_rport_state_enter(rport, RPORT_ST_NONE);
 	queue_work(rport_event_queue, &rdata->event_work);
 
 	lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL);